Tool-holding apparatus.



PATENTED FEB. 14, 1905.

B. L. TRUMAN.

TOOL HOLDING APPARATUS.

APPLICATION FILED APR.15| 1904.

Uni

E fl Patented February 14, 1905.

PATENT @EETCE.

ELAH L. TRUMAN, OF DAYTON, OHIO.

TOOL-HOLDING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 782,291, dated February 14, 1905.

Application filed April 15, 1904. Serial No. 203,356.

To (ZZZ whom it wmq concern:

Be it known that I, ELAH L. TRUMAN, a citizen of the United States, residing at Dayton, in the county of Montgomery and State of Ohio, have invented certain new and useful Improvements in Tool-Holding Apparatus; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanyingdrawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention relates to new and useful improvements in tool-holding apparatus; and the object of the invention is to produce a simple and eflicient mechanism for holding a tool while being sharpened upon a grindstone.

The invention consists in various details of construction and in combinations and arrangements of parts, which will behereinafter fully described and then specifically defined in the appended claim.

Hy invention is illustrated in the accompanying drawings, which, with the letters of reference marked thereon, form apart of this application, and in which Figure l a perspective view showing my improved tool-holding apparatus in the position which it assumes when holding a tool to be ground. Fig. 2 is a side elevation of the tool-holding device, showing the manner of holding the tool at different angles with reference to the grinding-surface; and Fig. 3 is a detail sectional view longitudinally through the tool-holding clamp mechanism.

Reference now being had to the details of the drawings by letter, A A designate two stripsof wood, or metal if desired, which come together at one end and are fastened together and carry a spike B, adapted for engagement with the side wall of a building or any other object adapted to hold the tapering end of the rack or holder. The rear ends of said strips Aare connected together by a round D, which serves two purposes, one for utilization as a handle and also serving to securely hold the flaring ends of the strips together. Each of the strips is recessed out, as at E, at locations opposite each other and in the upper edges of the strips, and the marginal outline of each recess is preferably angular, corresponding to the octagonal-outlined portion of the shaft K or any other angled circumference of the shaft that may be employed. The octagonaloutlined shaft K is mounted in said recess, and boxes N, recessed out on their under faces to correspond to the contour of the octagonaloutlined shaft, are held to the strips A by means of screws N and are adapted to hold the shaft securely in any adjusted position. Fixed to said flange is a flanged tool-holding member Q, and Q, designates a clamping-jaw pivotally mounted upon a pin S, passing through the flanges of said tool-holdingmember, and a set screw lt passes through a threaded aperture in the rear end of said clamping member and is adapted to bear against a tool T, held upon said member, whereby as the screw is turned in one direction, with the lower end of the screw bearing against the tool to be sharpened, the forward end of the clamping member may be forced down, so as to'frictionally engage the tool and hold the same securely while beingsharpened.

By the provision of an apparatus embodying the construction shown it will be observed that an eflicient means isafl'orded for securely holding a tool while being sharpened. and by merely forcing the spike into any object the tapering end of the device. may be securely hold while the operator may set the apparatus so that the tool to be sharpened may be held at any desired angle, and by applying pressure to the handle the operator may regulate the grinding of the tool.

\Vhile l have shown a particular construction of device embodying the features of my invention, it will be understood that I may make alterations in the detailed construction of the same, if desired, without in any way departing from the spirit of the invention.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

A tool-holding device comprising a V- shaped rack with a handle separating the diverging ends thereof, and a spur at the other end of the rack, a shaft having an angularoutlined circumference engaging recesses in the side pieces of said rack, straps having recesses in their under edges, the marginal Walls of Which recesses are angular and adapted to conform to the angular circumference of said shaft, means for fastening said straps over said shaft, a carriage formed integral with said shaft and provided With flanges along its longitudinal edges, a rock-shaft journaled in the flangeso f said carriage, a clamping-plate fixed to said rock-shaft, and a thumbscreW passing through one end of said clamping-plate and adapted to bear against the end of a tool resting upon the bottom of said carriage and engaged by said plate, as shown and described. I 5.

In testimony whereof I hereunto aflix my signature in presence of two Witnesses.

ELAM L. TRUMAN.

Witnesses:

R. OTTO BAUMANN, CARL W. LENZ. 

